99247665 has 32 divisors (see below), whose sum is σ = 175343616. Its totient is φ = 47533760.

The previous prime is 99247651. The next prime is 99247669. The reversal of 99247665 is 56674299.

It is not a de Polignac number, because 99247665 - 2⁵ = 99247633 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (99247669) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10072 + ... + 17318.

It is an arithmetic number, because the mean of its divisors is an integer number (5479488).

Almost surely, 2^99247665 is an apocalyptic number.

It is an amenable number.

99247665 is a deficient number, since it is larger than the sum of its proper divisors (76095951).

99247665 is a wasteful number, since it uses less digits than its factorization.

99247665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7349.

The product of its digits is 816480, while the sum is 48.

The square root of 99247665 is about 9962.3122316057. The cubic root of 99247665 is about 462.9919421027.

The spelling of 99247665 in words is "ninety-nine million, two hundred forty-seven thousand, six hundred sixty-five".